NI Software serial numbers are generated when the product is shipped. Depending on your order, it may take a few days for this to occur. You should receive an email with the serial number as soon as it is available.
In the meantime, you should be able to download
and run LabVIEW or other NI software in evaluation mode until the serial number is available. If the standard evaluation period is approaching its end, you can extend your evaluation period
If your serial number was not sent when your order shipped or if you no longer have access to an extended evaluation, please contact NI Support